Tesla has reportedly pushed back the launch of its Model X crossover until 2014, one year later than originally planned.

Speaking with the LA Times, Tesla's Shanna Hendricks cites increased demand for the existing Model S sedan as the reason for the delay.

With sales of 20,000 units expected for 2012, the Model S’ apparent impact on the Model X’s release has come late in the crossover’s development program, casting some doubt that this is the sole reason for the delay.

The electric carmaker claims to have received over US$40 million (AU$38.8 million) worth of advanced orders for the Model X, and these interested parties will now have to wait a further 12 months to take delivery.

Tesla’s recent filing with the US Government's Securities and Exchanges Commission states, “We revealed a prototype of Model X in February 2012 and plan to begin production in late 2014.”

Alaying concerns of a downturn in Tesla's profits however, Hendricks added: “We do not expect a material impact on our profitability in 2013 or 2014.”

Shown in prototype guise at the recent Detroit and Geneva motor shows, the Model S-based crossover will feature gullwing doors for rear passengers, and be available with either 60 or 85kWh lithium-ion battery systems.

Final technical details are yet to be revealed, but power is expected to be directed to all four wheels via a dual electric motor setup which will propel the Model X from 0-100km/h in 4.4 seconds.

The Model X is now set to commence production in late 2014, with US deliveries starting in early 2015.